Exercise apparatus



FIG. 1 is a rear isometric view of an exercise apparatus of the present invention, with the broken lines representing environmental elements of the exercise apparatus that form no part of the claimed design;

FIG. 2 is a front elevation view of the exercise apparatus of FIG. 1, with the broken lines representing environmental elements of the exercise apparatus that form no part of the claimed design;

FIG. 3 is a rear view of the exercise apparatus of FIG. 1, with the broken lines representing environmental elements of the exercise apparatus that form no part of the claimed design;

FIG. 4 is a left elevation view of the exercise apparatus of FIG. 1, the right elevation view of the exercise apparatus is a mirror image of the left elevation view, with the broken lines representing environmental elements of the exercise apparatus that form no part of the claimed design; and,

FIG. 5 is a top view of the exercise apparatus of FIG. 1, with the broken lines representing environmental elements of the exercise apparatus that form no part of the claimed design. 

The ornamental design for an exercise apparatus, as shown and described. 